Imipenem - Broad Spectrum of Antibacterial Activity is an intravenous β-lactam antibiotic. It belongs to the subgroup of carbapenems. Imipenem - Broad Spectrum of Antibacterial Activity is manufactured by Unimark Remedies Limited. Unimark Remedies Limited is an ISO 14001 and 18001 certified company that manufactures pharmacueticals like cephalosporins, carbapenems, antibacterials and antimicrobials. The company also has approvals from US FDA, EDQM and WHO. Imipenem acts as an antimicrobial through inhibiting cell wall synthesis of various gram-positive and gram-negative bacteria. It remains very stable in the presence of beta-lactamase [both penicillinase and cephalosporinase] produced by some bacteria, and is a strong inhibitor of beta-lactamases from some gram-negative bacteria that are resistant to most beta-lactam antibiotics.